Since, as the article states, Muslims are hardly the only people who commit suicide bombings, the idea of the 72 virgins is pretty irrelevant. Focusing on that distracts people from the real reasons people commit this kind of act. This is not by accident, because people who are waging military occupations in other peoples' countries don't want anyone to think that the people whose countries they are violating have any kind of legitimate complaint. They want everyone else to believe the people whose countries they occupy are simply bad people who deserve what they get.